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Finding the Fourth Proportional to 63.11, 94.60 and 27

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Solution

The fourth proportional to 63.11, 94.60 and 27 is: 40.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.11 : 94.60 = 27 : x
  2. Step 2: Convert to fraction form
    63.11/94.60 = 27/x
  3. Step 3: Cross multiply
    63.11x = 94.60 × 27
  4. Step 4: Simplify right side
    63.11x = 2,554.23
  5. Step 5: Solve for x
    x = 2,554.23/63.11
  6. Step 6: Final answer
    x = 40.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.